Differences between RD and FD:

Although FD has (planned) feature of scaling (just in design mode to improve convenience), after switching to data mode, there's one defined "100%" scale. RD has no fixed scale, on printing, everything is scaled regarding to page settings, etc.

5.1.1. More description

5.1.2. Questions

data fields can expandable to if their data is too large for original size... but this requires a bit difficult algorithm because other fields need to be moved down/left after such resize. LOW PRIORITY TODO.